NZ · Citizenship by descent

New Zealand citizenship by descent

Reaches a parent. Every answer on this page is what Postern’s rulebook returns, word for word, with the law it cites. The free check runs the same rules.

Last verified 25 September 20262 sourcesNot legal advice

NZ · PARENTLIKELYThrough a parentCitizenship by descent (s. 7)NZ · GRANDPARENTUNLIKELYThrough a grandparentTwo or more generationsNZ · GREAT-GRANDPARENTUNLIKELYThrough a great-grandparentTwo or more generations
Routes
Citizenship by descent (s. 7), one generation
Dual citizenship
Kept on every open route

The stamps assume no one in the line became a citizen of another country before the next person in the line was born. What changes each answer is below.

On this page
  1. 01Who qualifies
  2. 02Dates that matter
  3. 03Mothers’ lines
  4. 04Keeping your citizenship
  5. 05The routes and the law
  6. 06The documents
  7. 07What it takes
  8. 08Where the records live
  9. 09Law changes
  10. 10Other doors
  11. 11Sources

01Who qualifies

Who qualifies, generation by generation

LIKELY

Can you claim New Zealand citizenship through a parent?

Citizenship by descent (s. 7)

A child born overseas to a New Zealand-citizen parent is a citizen by descent, provided that parent held citizenship otherwise than by descent — born in New Zealand, or a citizen by grant or naturalisation — at the time of the birth; a parent who is only a citizen by descent cannot pass it on again. There is no age deadline to apply.

What would settle itWhether your New Zealand-citizen parent held citizenship otherwise than by descent — s. 7 does not reach a parent who is themselves a citizen by descent.

  • A person born outside New Zealand on or after 1 January 1978 is a New Zealand citizen by descent if, at the time of the birth, a parent was a New Zealand citizen otherwise than by descent. Citizenship Act 1977, s. 7
  • New Zealand citizenship may be held alongside any other citizenship. Citizenship Act 1977
UNLIKELY

Can you claim New Zealand citizenship through a grandparent?

Two or more generations

New Zealand citizenship by descent reaches only one generation born overseas, through a parent who is a citizen otherwise than by descent; it does not extend to a grandchild or great-grandchild, and we found no discretionary grant that covers this case.

What would settle itWhether your parent holds New Zealand citizenship otherwise than by descent (for example, by being born there, or by grant), which would put you on the parent route instead.

  • A person born outside New Zealand is a citizen by descent only if a parent was, at the time of the birth, a New Zealand citizen otherwise than by descent; a parent who is a citizen by descent cannot pass it on again. Citizenship Act 1977, s. 7
UNLIKELY

Can you claim New Zealand citizenship through a great-grandparent?

Two or more generations

New Zealand citizenship by descent reaches only one generation born overseas, through a parent who is a citizen otherwise than by descent; it does not extend to a grandchild or great-grandchild, and we found no discretionary grant that covers this case.

What would settle itWhether your parent holds New Zealand citizenship otherwise than by descent (for example, by being born there, or by grant), which would put you on the parent route instead.

  • A person born outside New Zealand is a citizen by descent only if a parent was, at the time of the birth, a New Zealand citizen otherwise than by descent; a parent who is a citizen by descent cannot pass it on again. Citizenship Act 1977, s. 7

02Dates that matter

The dates that matter

  1. 1978
    1 January 1978

    A person born outside New Zealand on or after 1 January 1978 is a New Zealand citizen by descent if, at the time of the birth, a parent was a New Zealand citizen otherwise than by descent. Citizenship Act 1977, s. 7

03Mothers’ lines

How mothers’ lines were treated

New Zealand’s rule gives the same answer whether the line runs through a mother or a father.

04Keeping your citizenship

Dual citizenship with your home country

You keep your citizenship.

On every open route, the rule lets a citizen of the United States, Canada, the United Kingdom, Australia, New Zealand, Brazil, Argentina or South Africa keep that citizenship.

  • New Zealand places no restriction on holding another citizenship alongside New Zealand citizenship. Citizenship Act 1977

05The routes

Every route, and the law behind it

Citizenship by descent (s. 7)

Open through a parent

  • LIKELY
    Through a parent

The law

  • A person born outside New Zealand on or after 1 January 1978 is a New Zealand citizen by descent if, at the time of the birth, a parent was a New Zealand citizen otherwise than by descent. Citizenship Act 1977, s. 7
  • New Zealand citizenship may be held alongside any other citizenship. Citizenship Act 1977

What would settle an unsure case

  • Whether your New Zealand-citizen parent held citizenship otherwise than by descent — s. 7 does not reach a parent who is themselves a citizen by descent.

Two or more generations

Closed: no open answer on this route

  • UNLIKELY
    Through a grandparent

    New Zealand citizenship by descent reaches only one generation born overseas, through a parent who is a citizen otherwise than by descent; it does not extend to a grandchild or great-grandchild, and we found no discretionary grant that covers this case.

The law

  • A person born outside New Zealand is a citizen by descent only if a parent was, at the time of the birth, a New Zealand citizen otherwise than by descent; a parent who is a citizen by descent cannot pass it on again. Citizenship Act 1977, s. 7

What would settle an unsure case

  • Whether your parent holds New Zealand citizenship otherwise than by descent (for example, by being born there, or by grant), which would put you on the parent route instead.

06The documents

The documents, as the rule lists them

Citizenship by descent (s. 7)

Through a parent

  • Your parent's New Zealand birth certificate, citizenship or naturalisation certificate
  • Your birth certificate
  • Application for New Zealand citizenship by descent (Department of Internal Affairs)

Most countries also want proof that no one in the line became a citizen elsewhere before the next birth: the naturalization record with its date, or a letter that none exists.

07What it takes

What it takes: time, cost, the hard part, who decides

Citizenship by descent (s. 7)

Time
A few months to register citizenship by descent and get a first passport.
Cost
NZD $243 to register citizenship by descent (from 21 November 2025), or NZD $422–525 combined with a first passport, depending on age; plus certified copies.
The hard part
None if your parent’s citizenship (by birth in New Zealand, or by grant) is documented; the harder question is confirming your parent did not hold citizenship only by descent themselves, since that would break the chain.
Who decides
The Department of Internal Affairs, online or by post, for registration; a passport application follows.
The first record
Your parent’s New Zealand birth certificate, or citizenship or naturalisation certificate, from The Department of Internal Affairs, Births, Deaths and Marriages Historical Records. Order the certified birth certificate online through Births, Deaths and Marriages with the parent’s name and approximate birth date, then apply to register citizenship by descent. govt.nz

How it’s filed

Where
The Department of Internal Affairs, online or by post. office list
How
Online; no appearance needed
Fee
About $140
Decision
4–17 weeks
What goes in the file (4)
  1. The citizenship-by-descent registration application
  2. Your parent's New Zealand birth certificate, citizenship or naturalisation certificate
  3. Your birth certificate
  4. Your parents' marriage certificate, if applicable
What goes wrong (3)
  • NZD $243 to register citizenship by descent (from 21 November 2025), or NZD $422–525 combined with a first passport depending on age; about $140–270 at 2026 exchange rates.
  • There is no age deadline to register.
  • Section 7 does not reach a parent who is themselves a citizen only by descent; confirming the parent's own status is the real gatekeeping question, not the paperwork.

Checked 25 September 2026 · source ↗

Estimates are honest ranges from official fee tables and what families report; where a fee or time could not be confirmed, it says so.

08Where the records live

Where each record lives, and how to ask for it

  • birth

    The Department of Internal Affairs, Births, Deaths and Marriages Historical Records

    Order online with the parent's full name and approximate birth date.

    Ask
    Online, in English · request page ↗
    Takes
    1–4 weeks
    Good to know (1)
    • Unverified: turnaround for a historical birth certificate ordered from abroad.

    Checked 25 September 2026 · source ↗

Translations

Into
English
Who may translate
No translation needed
About
$0–$0 a page

U.S. records are already in English; no translation is required. Non-English documents need a translation by a recognised translator.

Checked 25 September 2026 · source ↗

The passport

Where
The Department of Internal Affairs, once citizenship by descent is registered; often filed together with the registration.
Fee
Not confirmed
Time
2–4 weeks
  • Passport fee shown as a placeholder; DIA prices a combined registration-and-passport application differently from registration alone.

Checked 25 September 2026 · source ↗

09Law changes

Recent and pending changes

The legislative watch has no pending bill or recent ruling recorded for New Zealand.

The watch re-reads the official pages behind this guide every day. When one changes, a person re-checks the rule before anything here moves.

10Other doors

If descent doesn’t reach you

One residence program leads to New Zealand without an ancestor, each with its own law and road to citizenship.

11Sources

Every source on this page

1 laws and official pages behind the answers, then the offices and pages behind the records and filing. Records and filing checked 25 September 2026.

  1. LawCitizenship Act 1977 · s. 7
  2. RecordsThe Department of Internal Affairs, Births, Deaths and Marriages Historical Records: Your parent’s New Zealand birth certificate, or citizenship or naturalisation certificate · checked 25 September 2026

Not legal advice. Postern’s rulebook is written from the statutes and tested against documented cases; where the law is unsettled, the answer says “possible” or “unsure” rather than guess.

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